PFOS Potassium Salt Technical Grade 98% from Japan
Technical grade potassium perfluorooctane sulfonate with 98% purity, used in manufacturing fire-fighting foams and coatings. Falls under HTS 2904.34.00.00 due to its specific chemical identity as a perfluorooctane sulfonate salt. Exclusively covers chemically defined sulfonated/halogenated hydrocarbons per Chapter 29 notes.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Obtain EPA TSCA certification for US imports; declare exact purity and impurities
• Common pitfall: mislabeling as 'fluorosurfactant' instead of chemical name triggers scrutiny